Adjusting Ford Ranger V-6 Valve

Here's how to adjust the valves on a Ford 2.8 liter V-6 engine.

V-6-171 Engine
When checking valve clearance, insert the feeler gauge between the valve tip and rocker arm at the front or rear of the valve tip and move the gauge in a forward or rearward motion parallel to the crankshaft center line. If the feeler gauge is inserted at the outboard edge and moved perpendicular to crankshaft center line, a false indication will be given, resulting in tight valve clearance.

Remove rocker arm cover.

Rotate engine slightly until cylinder No. 5 intake valve just begins to open. This can be verified by placing a finger on the intake valve rocker arm adjusting screw for cylinder No. 5 and feeling for movement while turning engine.

Adjust intake and exhaust valves on No. 1 cylinder to .014 inch for intake valves and .016 inch for exhaust valves, by tightening or loosening the adjusting screw as necessary.

Adjust remaining valves in firing order by positioning the cam according to the chart.